回归正交试验试验
regression-orthogonal design
蔡司头微硬试验计
Zeiss micro-hardness tester
深氮化硬化32Cr3MoVE钢
32Cr3MoVE deep nitrided steel
循环软化硬化
cyclic hardening and softening
T淋巴细胞体外转化试验
T lymphocyte transformation of spleen in vitro experiments
半工业化试验
semi industrialization experiment
薄层微氧化试验
thin film micro oxidation test
步进加速退化试验
step-up-stress accelerated degradation testing